Per CC-CEDICT, two distinct modern senses. (1) Confucian:
五常 =
仁 (rén, benevolence),
义 (yì, righteousness),
礼 (lǐ, propriety),
智 (zhì, wisdom),
信 (xìn, faithfulness) — the 'five' half of
三纲五常. (2) Geopolitical: shorthand for
安理会五常 'the P5' — China, France, Russia, UK, USA. Context disambiguates: ancient ethics text → sense 1; foreign-affairs news → sense 2.